Autor:	E. Valtcheva, E. Lozanov, P. Pavlov, V. Makaztchieva
Rok vydání:	1991
Předmět:	chemistry.chemical_compound Polymers and Plastics chemistry Chemical engineering Polymer science General Chemical Engineering Kinetics Viscose Cellulose
Zdroj:	Acta Polymerica. 42:462-465
ISSN:	1521-4044 0323-7648
DOI:	10.1002/actp.1991.010420914
Popis:	With the increase of the mercerization temperature of the cellulose in the process of viscose production from 20 to 105°C, the quality of the obtained viscose goes through a minimum at 70°C, while 105°C is the most advantageous temperature. The kinetics of the xanthogenation after mercerization at the three indicated temperatures has been investigated. It is established that the kinetic characteristics of the xanthogenation are improved in the same order of temperatures of the preliminary mercerization. This shows that the advantageous effect of the high-temperature mercerization on the quality of the viscose is in direct connection with the favourable effect of the mercerization on the xanthogenation.
Databáze:	OpenAIRE
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